<!doctype html>
<meta charset="utf-8">
<title>CSS Highlight API Test: Highlighing Ligatures Ref</title>
<style>
  @font-face {
    font-family: 'mplus';
    src: url('../../../fonts/mplus-1p-regular.woff');
  }
  div {
      font-size: 7em;
      font-family: mplus, sans-serif;
  }
  ::selection {
    color:green;
    text-decoration: blue 2px line-through;
  }
</style>
<body><div>fii ffi fff</div>
<script>
  let textNode = document.body.firstChild.firstChild;

  let r1 = new Range();
  r1.setStart(textNode, 1);
  r1.setEnd(textNode, 9);
  window.getSelection().addRange(r1);
</script>